Cutaneous hepatozoon canis infection in a dog from New Jersey

Liz Little*, Gad Baneth

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A 7-month-old mixed-breed intact female dog was presented to a private veterinarian with a 2 cm in diameter raised, pruritic, alopecic, subcutaneous, fluctuant swelling over the right eye. Cytology of the mass revealed many degenerate neutrophils, moderate numbers of eosinophils, moderate numbers of macrophages, rare mast cells, and few erythrocytes. Rare neutrophils contained a protozoal agent compatible with a Hepatozoon gamont. Real-time polymerase chain reaction of peripheral blood was positive for Hepatozoon canis. The complete sequence identity of the amplified 18S ribosomal RNA fragment from the dog's blood confirmed H. canis and proved it was relatively distant from the corresponding fragment sequence of Hepatozoon americanum. This case is important in documenting an unusual presentation of infection with H. canis outside of the southern United States.

Original languageAmerican English
Pages (from-to)585-588
Number of pages4
JournalJournal of Veterinary Diagnostic Investigation
Issue number3
StatePublished - May 2011


  • Cutaneous
  • Dogs
  • Hepatozoon
  • Protozoa


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